Control for swinging doors, windows, and the like



. 1,612 939 Jan. 4, 1927. Q A ,NE|TZEL ET AL CONTROL FOR SWINGING DOORS, WINDOWS, AND THE LIKE Filed Dec 24 19 25 2 Sheets-Sheet 1 jbven fa m Jan. 4, 1927. 1,612,939

, O.A.NEWZELETAL CONTROL FOR SWINGING DOORS, WINDOV VS, AND THE LIKE Filed Dec- 24, 1925 2 Sheets-Sheet 2 Oscar 4 /Ve/2ze/ Patented Jan. 4, 1927.

tlhil'tEQ STATES PATENT QFFICE.

OSCAR A. NEITZEL AND HARRY N. HOLIVI, F LMINNEAEOLIS, MINNESOTA.

CONTROL FOR SWINGING- DOORS, VJ'INDOVIS, AND THE LIKE.

Application filed Dccemhcr 2a, 1925. Serial No. 77.547.

v catc like parts throughout the several views.

Referring to the drawings:

Fig. 1 is an elevation of a door frame and door hinged thereto with the invention applied to the door and its frame;

Fig. 2 is a view principally in horizontal 9 "-tion, taken on the line 2-2 of Fig. 1 with re parts shown in different positions by oi broken lines;

Fig. 3 is a side elevation of the invention;

Fig. 4t is a bottom plan view of the same;

Fig. 5 is a detail principally in section, taken on the line 5-5 of Fig. 4; and

6 shows a modification of the rod.

'1 he numeral 7 indicates a swinging door hinged to a door frame 8.

The control, as shown in Figs. 1 to 5, inclusive, comprises a horizontal swinging rod 9, two attaching brackets and 11 secured by wood screws, the former to the door frame 8 and the latter to the door 7. One end of the rod 9 is bent vertically downward to ai'iord a pivot stud 12 mounted in a bore in a hinge lug 13011 the bracket 10 and connects said rod to the door frame 8 for horizontal swinging movement. A cotter pin 14 inserted through a bore in the pivot stud 12'below its hinge lug 13 holds the rod 9 against removal from the bracket 10.

The other end of the rod 9 extends through a transverse bore in a vertical post 15, the lower end of which is reduced to attord a pivot stud 16 turnably mounted in a vertical bore "formed in a lug 17 on the bracket 11 and connects said post to said bracket for swivel action. A cotter pin 18 inserted through the stud 16 below the lug 1? holds the post against removal from the bracket 11. The post 15 is longitudinally split at 19 through the axis of its transverse bore. For trictionally clamping the prongs of the post 15 onto the rod 9 under a variable and yielding friction, a thumb screw 20 having a knurled head is loosely inserted through a bore in one of said prongs and has screw-threaded engage ment with the other prong thereof. A coiled spring 21 encircling the thumb screw 20 is compressed between the apertured prong ot' the post 15 and the knurled head on said screw. By adjusting the thumb screw to compress or release the spring 21, the triotional engagement between the rod 9 and the post 15 may be varied at will. This frictional engagement between the rod 9 and post 15 is such that the door 7 will be held open where set in any desired position and the control is entirely automatic in its action so that the same does not have to be moved or adjusted when swinging the door 7 open or closed. As the control does not have any direct engagement with the door or the floor over which it swings, said door or floor will not be marred or injured.

et'erring now to the detail shown in Fig. (3, it will be noted that the end portion of the rod 22 that is arranged to slide in the split post 15 is slightly tapered at 23 so that its frictional engagement with said post is progressively increased during the initial opening movement of the door until said door extends at substantially right angles to its closed position and then the friction is the same during the balance of the opening movement of the door. This form of rod is especially adapted for use on doors which are controlled by means of air checks. By the use of our improved control, a door or window may be swung substantially 180 and automatically held in any of its intermediate positions.

lVhat we claim is:

A control of the kind described comprising a pair of brackets one of which is applicable to a relatively fixed support and the other of which is applicable to swinging member hinged to said support, a rod hinged to one of said brackets, a post swiveled to the other of said brackets and having a transverse here, said post being longitudiapertured prong of the post and an abutment nelly split througlrsaid bore, a screW exon said screw.

tending loosely through an aperture in one In testimony whereof We afi'ix our signaof the prongs of the split post and having tures.

screw-threaded engagement with the other prong thereof, and a coiled spring encir- OSCAR A. NEITZEL. cling the screw and compressed between the HARRY N. HOLM. 

